Flowering plant ID?

Question

I am from Kentucky and recently saw a wildflower that I couldn't identify. It is a small leafy plant growing wild in a pasture. The bloom is quarter-sized, pale bluish/gray color, in the distinct shape of a star. In the very center of the star is a separate bright yellow bud.

Answer 1

Is this what you are looking at?

http://glenbrookplants.com/store/images/...

Answer 2

It's a species of Amsonia aka Blue Star. There are several species of them. I think you have the Eastern Bluestar

A. tabermontana.